Improvement in liquid meters



din-m11 States aient @twine Letters Patent No. 101,125, dated March22,1870 5 antedatecl March. 15,1870.

IMPROVEMENT IN LIQUID METERS.

The Schedule referred to in these Letters Patent and making pa: of thesame.

To all whom 'it may concern Be it known that I, THOMAS C. HAnenAvn, ofBoston, in the county of Suolk and State ot' Massachusetts, haveinvented an Improved Apparatus for Measuring the Flow of Liquids, &c.,ot' which the following is a full, clear, and exact description,reference .being had to the accompanying drawings making part of thisspecification, in which- Figure 1 is a perspective view of my improvedapparatus, the Vfront plate being removed, to show the interior. l

Figure 2 is a longitudinal vert-ical section through the center of theapparatus.

Figure 3 is 'a perspectivev view of theY oscillating pan.

Figure 4 is a transverse section through the center of the apparatus.

My invention has for its object to dispense with the use of valves inapparat-us for measuring the tlow of liquids, and .thereby not Vonlygreatly simplify their construction, increase their durability, andreduce the cost of manufacture, but also entirely avoid leakage, thusrendering them `more accurate and reliable 'than heretofore; and.

My invention consists in an oscillating pan or receptacle of peculiarform, which is accurately balanced upon adjustable points Orcenterswithin a suitable casing provided with inlet and outlet-openings, thepan being divded,by a central partition, into two measuring-chambers ofequal capacity, which are alternately brought into a position to receiveand ret-ain the desired quantity of liquid, which is discharged from andover the outer ends of the chambers as the latter are alternatelycarried down by the oscillations of the pan.

To enable others skilled irr the art to understand and use my invention,I will proceed to describe the manner in which I have carried it out.

In the said drawings- A represents the outer casing of the apparatus,which is of the form shown in tig. 1, the front being closed by aremovable plate, a, iig. 4, which, when iitted into its place, rendersthe casing air-tight. y

Within the casing Ajs an oscillating pan, B, of a diamond form inlongitudinal section, to the front and rear plates of which are securedblocks b, through which pass the screws c, the lower ends 'of whichterminate in points 5, which rest in conical recesses insupporting-blocks d e, attached, the former, (l, to the inside of therear plate f of the casing A, and the latter, e, to the inner side of across-bar, C, which extends across the casing, from one side to theother, as seen in fig. 1, the pan being thus balanced so that it willrock or oscillate freely from side to side without creating anyappreciable friction; and, by turning the screws c,.the points 5 may beadjusted so that the distance ofthe oscillating point of the pan B belowits centre of gravity may bevaried as desired.

y is a partition-plate which extends across the pau B, and divides itinto two compartments or measurv ing-chambers, It i., of equal capacity,which are entirely open at the top, asseen in figs. 1 and 3.

G is the inlet or supply-pipe which passes through the top of the casingA, and is 'flattened at its lower end, so as to form a long narrowdischarge-opening, Z, and, when the pan B is in the position seen iniig. 1,

4Athe liquid Hows from the pipe Ginto the chamber h until the weight ofthe liquid contained therein is suficient to oscillate the pan B, whichwill then assume the position seen in tig. 2. This movement of the panbrings the chamber t beneath the in1et-pipe G, the contents of thechamber 'lt being, at the same time, discharged from its outer end overthe edge fm. into the lower portion of the casing A, which is 'inclineddown from both ends toward the outlet-pipe H, through which the liquidpasses out of the meter. The pan is again oscillated as soon as aquantity of liquid ot' suii'icient weight has entered the chamber t,this movement bringing the chamber h. beneath the inlet-pipe, andcausing the liquid to be discharged from the outer end of the chamber iinto the lower portion ot' the casing, and the measuring-chambers arethus alternately tilled and emptied, as required.

The quantity ot' liquid which must enter each chamber in order tooscillate the pan will vary in proportion to the distance ot' the centerof oscillation of the pan below its center of gravity, and, by makingthe center of oscillation adjustable, the amount of liquid allowed toenter each chamber may be regulated with great nicety, as required.

The number oi' oscillations of thepan'B, and, consequently, the.quantity of liquid passing through the meter, may he recorded by meansof any of the wellknown contrvances in use for this purpose, and theregistering apparatus may be secured, it' desired, to the cross-bar C,and be viewed through a glass plate inserted in the front plate a of thecasing A.

It will be seen that, as no valves of any description are employed inmyimproved apparatus, its construction is greatly simplified, and theAcost of manufacture proportionately reduced, .while its durability isincreased, and the liability of leakage incident to meters provided withvalves, which frequently get out of order, is entirely a'v ided, thuscausing the apparatus to measure with tie greatest accuracy the quantityof' liquid passing through it, which renders it particularly adapted formeasuring spirits, where it is desirable t'o avoid even the smallestpercentage of waste.

Instead ot' the pan B being balanced upon points,

as above described, it may be made to oscillateupon axles, knife-edges,or centers, without departing from thespirit of my invention. d

If desired, the pan B may be provided with a connterbalance-yveight, soarranged as to roll or slide freely from one side to the other of asuitable guide-way as the pan oscillates.

Although the above-described apparatusis designed particularly formeasuring liquids, yet it might be employed to advantagev for weighingsolids of some descriptions-for inst-ance, shot or grain, which couldthus be accurately weighed, and delivered into bags in a more convenientand expeditious manner than here-` tofore.

Claims. What I claim as my invention, and desire to secure by LettersPatent, isn The oscillating pa'n B, divided. into compartments ormeasuring-chambers, h c", so folmed as to allow of their being emptiedwithout the employment .of valves,

in combination with a casing provided with inlet and

